Splitting a Multipage TIFF File

The following steps show how to loop through all pages of a multipage TIFF file and extract each page, process it individually, and save it into a separate file.

NOTE: To save a region inside a TIFF file, you must have an unlocked  Document, Vector, or Medical Imaging license.

1.

Declare the following variables:

 
LBitmapBase BitmapBase;         // LEAD bitmap 
LFile LeadFile;                 // File operations 
FILEINFO FileInfo = {0};        // File info 
L_INT PageNumber, TotalPages;   // Page numbers 
L_TCHAR szOutFileName[MAX_PATH];   // Output file name

2.

Determine the number of pages in the file:

 
BitmapBase.SetFileName (TEXT("MultiPage.tif"));   
LeadFile.GetInfo (&FileInfo, sizeof(FILEINFO));    
TotalPages = FileInfo.TotalPages;

3.

Loop through the pages of the file; performing specific processing on each page, then save each page into a separate file:

 
for (PageNumber=1; PageNumber<=TotalPages; ++PageNumber) 
{ 
   // Load the next image in the loop 
   BitmapBase.Load (TEXT("MultiPage.tif"), 0, ORDER_BGRORGRAY, PageNumber); 
   // Check that it is properly loaded and allocated 
   if(BitmapBase.IsAllocated ()) 
   { 
      // Perform specific processing on the page, such as flipping it 
      BitmapBase.Flip (); 
      // Save the page to a separate file 
      wsprintf(szOutFileName, TEXT("PageNumber%4.4d.bmp"), PageNumber); 
      BitmapBase.Save (szOutFileName, FILE_BMP, BitmapBase.GetBitsPerPixel (), 0, 0); 
   } //if Allocated 
} //for loop
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